Excessive concrete pouring detector for underwater cast-in-place piles and method for using excessive concrete pouring detector

Abstract

The invention provides an excessive concrete pouring detector for underwater cast-in-place piles and a method for using the excessive concrete pouring detector. The excessive concrete pouring detector for the underwater cast-in-place piles comprises a measuring rope, a counterweight ring, a coring barrel and a leakage stop valve; the lower end of the measuring rope is fixedly connected with the counterweight ring, the lower end of the counterweight ring is fixedly connected with the coring barrel, a transparent observation window is arranged on a side wall of the coring barrel, and the leakage stop valve is arranged inside the lower end of the coring barrel; and a rotary shaft is arranged in the middle of the leakage stop valve, an upper fan blade and a lower fan blade penetrate through the rotary shaft via connected lantern rings, and two ends of the rotary shaft are fixedly connected with a fixing ring. Compared with the prior art, the excessive concrete pouring detector and the method have the advantages that concrete pouring heights of the underwater cast-in-place piles can be accurately detected, conditions of surfaces of the underwater cast-in-place piles or thicknesses of sediments at bottoms of the piles and the like can be known, the problem that bottoms of pile holes are not thoroughly cleaned or elevations of underwater concrete poured surfaces are inaccurate is effectively solved, the underwater cast-in-place piles can meet design requirements by the aid of the detector, waste of concrete is reduced, and the probability of potential safety hazards is reduced.

Description

technical field [0001] The invention relates to the field of construction, in particular to a concrete overfilling detector for underwater pouring piles and a method for using the same. Background technique [0002] In the construction practice of underwater cast-in-situ piles, the concrete compactness often fails to meet the design requirements when the pile head is broken to the design elevation, or the concrete overfilling height is relatively large, resulting in serious waste of concrete, and at the same time increasing the engineering volume of breaking the pile head. Analysis of the reason: When pouring concrete with underwater pouring piles, the laitance and mud on the surface of the concrete are relatively thick. Common line hammer or bamboo pole penetration detection is usually used to detect the concrete pouring height of underwater pouring piles. This method requires high experience of workers, and the measured results are not accurate, so the phenomenon of over-f...

AI Technical Summary

Problems solved by technology

[0002] In the construction practice of underwater cast-in-situ piles, the concrete compactness often fails to meet the design requirements when the pile head is broken to the design elevation, or the concrete overfilling height is relatively large, resulting in serious waste of concrete, and at the same time increasing the engineering volume of breaking the pile head. Analysis of the reason: When pouring concrete with underwater pouring piles, the laitance and slurry on the surface of the concrete are relatively thick

Common line hammer or bamboo pole penetration detection is usually used to detect the concrete pouring height of underwater pouring piles. This method requires high experience of workers, and the measured results are not accurate, so the phenomenon of over-filling or under-filling of foundation piles occurs.

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